add

backend/sql/04_country.sql

@@ -1,124 +1,134 @@
--- 切换到目标数据库
+-- =========================================================
-\c postgres;
+-- country.sql 🌍
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
 
+-- 1️⃣ 开始 🚀
 DO $$
 BEGIN
+    RAISE NOTICE '🚀============ country 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- country 主表
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country') THEN
-        CREATE TABLE country ( 
+        CREATE TABLE country (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
         CREATE TRIGGER update_country_updated_at
-        BEFORE UPDATE ON "country"
+            BEFORE UPDATE ON country
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣✅ country 主表已创建';
-        
-        RAISE NOTICE 'created country table and trigger';
     ELSE
-        RAISE NOTICE 'country table already exists';
+        RAISE NOTICE '1️⃣⏩ country 主表已存在，跳过';
     END IF;
 
+    -- country_name
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_name') THEN
         CREATE TABLE country_name (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             country_id UUID NOT NULL,
             name VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
-        CREATE TRIGGER update_name_updated_at
+        CREATE TRIGGER update_country_name_updated_at
-        BEFORE UPDATE ON "country_name"
+            BEFORE UPDATE ON country_name
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ country_name 子表已创建';
-        
-        RAISE NOTICE 'created country_name table and trigger';
     ELSE
-        RAISE NOTICE 'country_name table already exists';
+        RAISE NOTICE '2️⃣⏩ country_name 子表已存在，跳过';
     END IF;
 
+    -- country_code
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_code') THEN
         CREATE TABLE country_code (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             country_id UUID NOT NULL,
             code VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
-        CREATE TRIGGER update_code_updated_at
+        CREATE TRIGGER update_country_code_updated_at
-        BEFORE UPDATE ON "country_code"
+            BEFORE UPDATE ON country_code
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ country_code 子表已创建';
-        
-        RAISE NOTICE 'created country_code table and trigger';
     ELSE
-        RAISE NOTICE 'country_code table already exists';
+        RAISE NOTICE '3️⃣⏩ country_code 子表已存在，跳过';
     END IF;
 
+    -- country_flag
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_flag') THEN
         CREATE TABLE country_flag (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             country_id UUID NOT NULL,
             flag VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
-        CREATE TRIGGER update_flag_updated_at
+        CREATE TRIGGER update_country_flag_updated_at
-        BEFORE UPDATE ON "country_flag"
+            BEFORE UPDATE ON country_flag
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '4️⃣✅ country_flag 子表已创建';
-        
-        RAISE NOTICE 'created country_flag table and trigger';
     ELSE
-        RAISE NOTICE 'country_flag table already exists';
+        RAISE NOTICE '4️⃣⏩ country_flag 子表已存在，跳过';
     END IF;
 END $$;
 
+-- 4️⃣ 视图 ------------------------------------
 DO $$
 DECLARE
     view_exists BOOLEAN;
 BEGIN
-    -- 检查视图是否已存在
     SELECT EXISTS (
         SELECT 1 FROM information_schema.views 
         WHERE table_name = 'country_info_view'
     ) INTO view_exists;
 
-    -- 若视图存在，先删除（避免字段名冲突）
     IF view_exists THEN
         DROP VIEW country_info_view;
-        RAISE NOTICE '已删除旧视图 country_info_view';
+        RAISE NOTICE '4️⃣♻️ 已删除旧视图 country_info_view';
     END IF;
 
-    -- 创建或更新视图
     CREATE OR REPLACE VIEW country_info_view AS
-    SELECT 
+    SELECT
         u.id AS country_id,
-        n.name AS name,       -- 国家名称
+        n.name,
-        c.code AS code,       -- 国家代码
+        c.code,
-        f.flag AS flag        -- 国旗信息
+        f.flag
-    FROM 
+    FROM country u
-        country u
+    LEFT JOIN country_name n ON u.id = n.country_id AND n.deleted = FALSE
-    LEFT JOIN 
+    LEFT JOIN country_code c ON u.id = c.country_id AND c.deleted = FALSE
-        country_name n ON u.id = n.country_id AND n.deleted = FALSE  -- 过滤已删除名称
+    LEFT JOIN country_flag f ON u.id = f.country_id AND f.deleted = FALSE
-    LEFT JOIN 
+    WHERE u.deleted = FALSE;
-        country_code c ON u.id = c.country_id AND c.deleted = FALSE  -- 过滤已删除代码
-    LEFT JOIN 
-        country_flag f ON u.id = f.country_id AND f.deleted = FALSE  -- 左连接：允许无国旗数据
-    WHERE
-        u.deleted = FALSE;  -- 只查询未删除的国家
 
-    -- 根据视图是否已存在输出不同提示
+    RAISE NOTICE '4️⃣✅ country_info_view 已创建/更新';
-    IF view_exists THEN
-        RAISE NOTICE '视图 country_info_view 已更新（删除旧视图后重建）';
-    ELSE
-        RAISE NOTICE '视图 country_info_view 已创建';
-    END IF;
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
+        RAISE NOTICE '4️⃣❌ 处理视图时发生错误: %', SQLERRM;
 END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_country_name_country_id_deleted     ON country_name(country_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_country_code_country_id_deleted     ON country_code(country_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_country_flag_country_id_deleted     ON country_flag(country_id, deleted);
+
+RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ country 部署完成 ============🎉';
+END $$;